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笔者在进行柘溪大头坝头部裂缝研究资料的分析与整理的过程中,对原文进行了学习.原文提出了一种用光弹性条纹图确定混合型应力强度因子K_1和K_11的普遍分析法一等参数法,并用来研究柘溪大坝裂缝的应力强度因子,这在理论上和实用上都是很有意义的.现将一些不成熟的意见提出来与大家讨论. (一)关于基本公式 作者从缝端应力表达式(式(1))和光弹性基本公式(式(2))出发,导得K_1、K_11的表达式.这里有两点应引起注意,即式(1)是裂纹缝端应力表达式和只取了奇异
The author studied the source text of the study data of the head cracks in the Datouba of the Suixi River and studied the original text. A general analysis method for determining the hybrid stress intensity factors K_1 and K_11 using the photoelastic fringe pattern was proposed. The isoparametric method is also used to study the stress intensity factor of the creek at the Tiaoxi Dam. This is both theoretically and practically significant. Now we will discuss some of the immature opinions to discuss with you. (1) About the basic formula The author derives the expressions of K_1 and K_11 from the expressions of stress at the end of the joint (formula (1)) and the basic formula of light elasticity (formula (2)). There are two points here that should be noticed, that is, equation (1) is the crack joint. End-stress expressions and only singularities