http://reply.papertrans.cn/2/195/19423/19423-31.png
http://reply.papertrans.cn/2/195/19423/19423-32.png
http://reply.papertrans.cn/2/195/19423/19423-33.png
Submitted on: 29 December 2017.
Revised on: 30 March 2018.
Accepted on: 29 April 2018.
___________________JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN
http://reply.papertrans.cn/2/195/19423/19423-35.png
http://reply.papertrans.cn/2/195/19423/19423-36.png