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The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Category Year Quartile
Mechanical Engineering 1999 Q1
Mechanical Engineering 2000 Q2
Mechanical Engineering 2001 Q3
Mechanical Engineering 2002 Q2
Mechanical Engineering 2003 Q2
Mechanical Engineering 2004 Q3
Mechanical Engineering 2005 Q2
Mechanical Engineering 2006 Q2
Mechanical Engineering 2007 Q2
Mechanical Engineering 2008 Q1
Mechanical Engineering 2009 Q1
Mechanical Engineering 2010 Q2
Mechanical Engineering 2011 Q2
Mechanical Engineering 2012 Q2
Mechanical Engineering 2013 Q1
Mechanical Engineering 2014 Q2
Mechanical Engineering 2015 Q2
Mechanical Engineering 2016 Q2
Mechanical Engineering 2017 Q1
Mechanical Engineering 2018 Q1
Mechanical Engineering 2019 Q2
Mechanics of Materials 1999 Q2
Mechanics of Materials 2000 Q3
Mechanics of Materials 2001 Q3
Mechanics of Materials 2002 Q3
Mechanics of Materials 2003 Q3
Mechanics of Materials 2004 Q3
Mechanics of Materials 2005 Q3
Mechanics of Materials 2006 Q3
Mechanics of Materials 2007 Q2
Mechanics of Materials 2008 Q2
Mechanics of Materials 2009 Q2
Mechanics of Materials 2010 Q2
Mechanics of Materials 2011 Q2
Mechanics of Materials 2012 Q2
Mechanics of Materials 2013 Q2
Mechanics of Materials 2014 Q2
Mechanics of Materials 2015 Q2
Mechanics of Materials 2016 Q2
Mechanics of Materials 2017 Q2
Mechanics of Materials 2018 Q1
Mechanics of Materials 2019 Q2

The SJR is a size-independent prestige indicator that ranks journals by their ‘average prestige per article’. It is based on the idea that ‘all citations are not created equal’. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year SJR
1999 0.650
2000 0.286
2001 0.146
2002 0.327
2003 0.236
2004 0.194
2005 0.327
2006 0.279
2007 0.481
2008 0.677
2009 0.796
2010 0.536
2011 0.467
2012 0.396
2013 0.757
2014 0.691
2015 0.649
2016 0.646
2017 0.805
2018 0.980
2019 0.614

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document Year Value
Cites / Doc. (4 years) 1999 0.354
Cites / Doc. (4 years) 2000 0.354
Cites / Doc. (4 years) 2001 0.129
Cites / Doc. (4 years) 2002 0.260
Cites / Doc. (4 years) 2003 0.384
Cites / Doc. (4 years) 2004 0.397
Cites / Doc. (4 years) 2005 0.679
Cites / Doc. (4 years) 2006 0.840
Cites / Doc. (4 years) 2007 1.104
Cites / Doc. (4 years) 2008 1.639
Cites / Doc. (4 years) 2009 1.686
Cites / Doc. (4 years) 2010 1.840
Cites / Doc. (4 years) 2011 1.489
Cites / Doc. (4 years) 2012 1.163
Cites / Doc. (4 years) 2013 1.557
Cites / Doc. (4 years) 2014 1.538
Cites / Doc. (4 years) 2015 1.696
Cites / Doc. (4 years) 2016 2.005
Cites / Doc. (4 years) 2017 2.029
Cites / Doc. (4 years) 2018 2.365
Cites / Doc. (4 years) 2019 1.858
Cites / Doc. (3 years) 1999 0.354
Cites / Doc. (3 years) 2000 0.327
Cites / Doc. (3 years) 2001 0.148
Cites / Doc. (3 years) 2002 0.281
Cites / Doc. (3 years) 2003 0.375
Cites / Doc. (3 years) 2004 0.456
Cites / Doc. (3 years) 2005 0.712
Cites / Doc. (3 years) 2006 0.846
Cites / Doc. (3 years) 2007 1.149
Cites / Doc. (3 years) 2008 1.322
Cites / Doc. (3 years) 2009 1.800
Cites / Doc. (3 years) 2010 1.618
Cites / Doc. (3 years) 2011 1.347
Cites / Doc. (3 years) 2012 1.076
Cites / Doc. (3 years) 2013 1.461
Cites / Doc. (3 years) 2014 1.452
Cites / Doc. (3 years) 2015 1.896
Cites / Doc. (3 years) 2016 2.022
Cites / Doc. (3 years) 2017 2.097
Cites / Doc. (3 years) 2018 2.345
Cites / Doc. (3 years) 2019 2.047
Cites / Doc. (2 years) 1999 0.344
Cites / Doc. (2 years) 2000 0.424
Cites / Doc. (2 years) 2001 0.132
Cites / Doc. (2 years) 2002 0.250
Cites / Doc. (2 years) 2003 0.457
Cites / Doc. (2 years) 2004 0.289
Cites / Doc. (2 years) 2005 0.674
Cites / Doc. (2 years) 2006 0.860
Cites / Doc. (2 years) 2007 0.868
Cites / Doc. (2 years) 2008 1.431
Cites / Doc. (2 years) 2009 1.298
Cites / Doc. (2 years) 2010 1.526
Cites / Doc. (2 years) 2011 1.290
Cites / Doc. (2 years) 2012 0.967
Cites / Doc. (2 years) 2013 1.364
Cites / Doc. (2 years) 2014 1.584
Cites / Doc. (2 years) 2015 1.870
Cites / Doc. (2 years) 2016 2.000
Cites / Doc. (2 years) 2017 1.889
Cites / Doc. (2 years) 2018 2.437
Cites / Doc. (2 years) 2019 1.463

Evolution of the total number of citations and journal’s self-citations received by a journal’s published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites Year Value
Self Cites 1999 2
Self Cites 2000 6
Self Cites 2001 0
Self Cites 2002 3
Self Cites 2003 1
Self Cites 2004 1
Self Cites 2005 7
Self Cites 2006 4
Self Cites 2007 9
Self Cites 2008 11
Self Cites 2009 10
Self Cites 2010 11
Self Cites 2011 12
Self Cites 2012 21
Self Cites 2013 25
Self Cites 2014 18
Self Cites 2015 14
Self Cites 2016 19
Self Cites 2017 14
Self Cites 2018 11
Self Cites 2019 11
Total Cites 1999 17
Total Cites 2000 16
Total Cites 2001 8
Total Cites 2002 16
Total Cites 2003 21
Total Cites 2004 26
Total Cites 2005 42
Total Cites 2006 55
Total Cites 2007 85
Total Cites 2008 115
Total Cites 2009 207
Total Cites 2010 212
Total Cites 2011 202
Total Cites 2012 282
Total Cites 2013 390
Total Cites 2014 382
Total Cites 2015 273
Total Cites 2016 271
Total Cites 2017 260
Total Cites 2018 265
Total Cites 2019 217

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal’s published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites Year Value
External Cites per document 1999 0.313
External Cites per document 2000 0.204
External Cites per document 2001 0.148
External Cites per document 2002 0.228
External Cites per document 2003 0.357
External Cites per document 2004 0.439
External Cites per document 2005 0.593
External Cites per document 2006 0.785
External Cites per document 2007 1.027
External Cites per document 2008 1.195
External Cites per document 2009 1.713
External Cites per document 2010 1.534
External Cites per document 2011 1.267
External Cites per document 2012 0.996
External Cites per document 2013 1.367
External Cites per document 2014 1.384
External Cites per document 2015 1.799
External Cites per document 2016 1.881
External Cites per document 2017 1.984
External Cites per document 2018 2.248
External Cites per document 2019 1.943
Cites per document 1999 0.354
Cites per document 2000 0.327
Cites per document 2001 0.148
Cites per document 2002 0.281
Cites per document 2003 0.375
Cites per document 2004 0.456
Cites per document 2005 0.712
Cites per document 2006 0.846
Cites per document 2007 1.149
Cites per document 2008 1.322
Cites per document 2009 1.800
Cites per document 2010 1.618
Cites per document 2011 1.347
Cites per document 2012 1.076
Cites per document 2013 1.461
Cites per document 2014 1.452
Cites per document 2015 1.896
Cites per document 2016 2.022
Cites per document 2017 2.097
Cites per document 2018 2.345
Cites per document 2019 2.047

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal’s documents signed by researchers from more than one country; that is including more than one country address.

Year International Collaboration
1999 17.65
2000 9.52
2001 4.55
2002 5.00
2003 3.85
2004 4.00
2005 3.85
2006 5.71
2007 15.79
2008 10.71
2009 17.31
2010 20.69
2011 20.25
2012 25.00
2013 18.37
2014 21.74
2015 28.57
2016 36.59
2017 21.88
2018 22.22
2019 28.13

Not every article in a journal is considered primary research and therefore “citable”, this chart shows the ratio of a journal’s articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents Year Value
Non-citable documents 1999 0
Non-citable documents 2000 0
Non-citable documents 2001 0
Non-citable documents 2002 3
Non-citable documents 2003 7
Non-citable documents 2004 11
Non-citable documents 2005 12
Non-citable documents 2006 12
Non-citable documents 2007 12
Non-citable documents 2008 12
Non-citable documents 2009 14
Non-citable documents 2010 15
Non-citable documents 2011 16
Non-citable documents 2012 11
Non-citable documents 2013 6
Non-citable documents 2014 1
Non-citable documents 2015 3
Non-citable documents 2016 3
Non-citable documents 2017 5
Non-citable documents 2018 2
Non-citable documents 2019 3
Citable documents 1999 48
Citable documents 2000 49
Citable documents 2001 54
Citable documents 2002 57
Citable documents 2003 56
Citable documents 2004 57
Citable documents 2005 59
Citable documents 2006 65
Citable documents 2007 74
Citable documents 2008 87
Citable documents 2009 115
Citable documents 2010 131
Citable documents 2011 150
Citable documents 2012 262
Citable documents 2013 267
Citable documents 2014 263
Citable documents 2015 144
Citable documents 2016 134
Citable documents 2017 124
Citable documents 2018 113
Citable documents 2019 106

Ratio of a journal’s items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Strain The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2

Strain journal

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