Separation of the Energy Release Rate of Fracture
Formally,the Griffiths energy release rate,the Irwins integral expression of crack closure energy and the Rices J-integral give same results for linear elastic material.But let us ask a question: do these three approaches really give an exact mathematical equality and an identical physical meaning? For this purpose,a uniform equation was therefore introduced into our new investigation.Thus,not only the Irwins integral expression of crack closure energy and the Rices J-integral can be derived from this uniform equation,but a very important result has been also obtained from them: the energy release rate is separable into two parts.The first part describes the extension of the crack front surface and the second the distortion.
the Griffiths energy release rate the Irwins integral expression of crack closure energy the Rices J-Integral and the new found Sk-Integral und Tk-Integral
Tianmin Guo
Siemens AG,Duisburger Straβe 145,47829 Krefeld,Germany
国际会议
北京
英文
1-12
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）