The main reason of shrinkage stress during curing period is the change from distance between monomer molecules to covalent distance . 樹(shù)脂固化時(shí)收縮應(yīng)力的主要原因是單體之間的分子間距離縮短變?yōu)楣矁r(jià)距離。
The effect on shrinkage deformation of fibre winding composites were considered by discussing the winding tensile resin thermo-shrinkage stress and the mandrels. 本文從纖維纏繞張力、樹(shù)脂收縮、熱應(yīng)力、芯模等方面探討了對(duì)纖維纏繞復(fù)合材料制品收縮變形的影響。
Embedding some steel bars in concrete slabs doesn't have much influence on temperature stress. But it can reduce shrinkage stress of concrete effectively, and delays the occurrence of cracks. 對(duì)于薄板而言，配置構(gòu)造鋼筋對(duì)于溫度應(yīng)力的影響不是很大，但卻能有效地降低混凝土的收縮應(yīng)力，推遲混凝土裂縫的出現(xiàn)。