Determination of residual stress intensity factor in the compact tension coupon

作者：Olson Mitchell D; Hill Michael R^*

来源：Engineering Fracture Mechanics, 2012, 88: 28-34.

DOI：10.1016/j.engfracmech.2012.03.009

• Residual stress
• Stress intensity factor
• Brittle fracture
• Fracture mechanics

This paper provides an influence function required to compute the residual stress intensity factor in the compact tension coupon, as a function of crack length, from measurements of back-face strain as a function of crack length. The influence function is determined from a reference solution for the C(T) with uniform applied pressure on the crack face that provides stress intensity factor and strain over a broad range of crack length (measured from the front face) and strain gage length. A closed form surface fit provides values of the influence function as a function of crack length and strain gage length.

• 出版日期2012-7