First , mathematical expressions for hoop strain based on linear elasticity theory and deformation plasticity theory , and thus diametral strain is derived 模型推導(dǎo)過(guò)程是:首先根據(jù)線性彈性理論和變形塑性理論推導(dǎo)出周向應(yīng)變的數(shù)學(xué)表達(dá)式,進(jìn)而導(dǎo)出徑向應(yīng)變。
Many scholars have done extensive research on spacial frame optimization design . but these studies are almost based on the theory of limited flexibility in small deformation linear elasticity theory , without considering the structure of the nonlinear element 對(duì)于空間剛架結(jié)構(gòu)形狀優(yōu)化問(wèn)題,許多學(xué)者都進(jìn)行了廣泛的研究,但研究?jī)?nèi)容幾乎都是基于小變形線彈性理論的有限元法,而未考慮結(jié)構(gòu)的非線性因素。