1) thermal stresses/closed continuous cylindrical shell
热应力/连续闭口柱壳
2) laminated continuous closed cylindrical shell
叠层连续闭口圆柱壳
3) thick laminated continuous closed cylindrical shell
叠层连续闭口厚圆柱壳
4) laminated con tinuous open cylindrical shell
叠层连续开口圆柱壳
5) laminated cylinder
叠层闭口柱壳
1.
Based on the fundamental equations of thermal elasticity, the state equation for a orthotropic laminated cylinder with clamped edges under thermal loads is established by introducing state space theory.
从热弹性力学的基本方程出发,引入状态空间理论,建立了具有固支边的正交异性叠层闭口柱壳在温度荷载作用下的状态方程,并给出适用于任意厚跨比的解析解。
6) closed laminated cylindrical shell
层合闭口柱壳
1.
Axisymmetric thermal stresses for closed laminated cylindrical shell of arbitrary thickness;
任意厚度层合闭口柱壳的轴对称温度应力
2.
Based on weak formulation of mixed state equations including boundary conditions for laminated cylindrical shells, equations of mixed state for thermal stresses of a closed laminated cylindrical shell with two clamped edges have been established in this paper.
基于层合柱壳混合状态方程和边界条件的弱形式,建立了两端固支层合闭口柱壳的温度应力混合方程,给出了任意厚度层合闭口柱壳在温度荷载和机械荷载共同作用下的解析解。
补充资料:焦炭热应力
焦炭热应力
thermal stress of coke
皿aotan reyin幼焦炭热应力(t恤rmal stress of coke)焦炭受热时,因内部结构和性质不均一,以及各部位的温度梯度而产生的应力。焦炭热应力断~aE(t,一劝/(l一力,MPa。式中a为焦炭热膨胀系数,K一’;E为焦炭杨氏模量,M凡;夕为泊松比,可取01;心为焦块表面温度,C八为焦块的平均温度,。,可取‘一‘一普入‘戈为焦块表面与中心之间的温度差,c。据此,街~0.44.laE倪,MPa口在高炉中焦块表面与中心的温度差,因块度大小和所在部位而异,一般可达100~300℃。苏联曾测得工业焦炭在不同加热温度下的焦炭热膨胀系数和焦炭杨氏模量,(表1)并据此估算了在高炉内离风口不同高度处,焦炭的最大热应力表2中数据表明,高炉内焦炭热应力因所处位置和块度大小不同,可在O,3一2.gMpa范围内波动。当焦块从10腼m减小到25二m时,最大热应力约减小z厂2。热应力的存在使焦炭气孔壁产生大量微裂纹,其长度一般为几微米,小的则仅有几纳米。微裂纹的发展,使焦炭气孔壁强度降低。因此,焦炭受热时产生的热 表1焦炭在不同温度下的热膨胀系数和杨氏模量~公川汗表2高炉内不同部位焦炭的最大热应力的估算值一应力,是高炉内焦炭不断降解的原因之一。 (江中礁姚昭章)
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