为研究冷弯薄壁不等肢复杂卷边角钢屈曲性能和稳定承载力设计方法,对24根不同截面、长细比、宽厚比的不等肢复杂卷边角钢进行了轴压试验。试验结果表明,长细比较大且宽厚比较小的试件易发生弯扭屈曲,长细比较小而宽厚比较大的试件易发生局部屈曲或弯扭和局部相关屈曲。采用ABAQUS有限元软件对试件进行了有限元模拟,屈曲模式和承载力与试验结果吻合良好,表明建立的有限元分析模型是可行的。因此可采用经验证的有限元模型对不同长细比、卷边形式和卷边比的轴心受压不等肢复杂卷边角钢进行了参数化分析。结果表明 ...
姚行友 +3 more
doaj
[Esketamine alleviates depression-like behaviors in mice with chronic restraint stress by activating glutamatergic neurons in the medial prefrontal cortex]. [PDF]
Zhang Z +7 more
europepmc +1 more source
[Formononetin downregulates P53/SAT1/ACSL4 pathway-mediated ferroptosis to improve hypoxic-ischemic brain injury in neonatal mice]. [PDF]
Guo T +8 more
europepmc +1 more source
[Application of molecularly imprinted polymers-based sensors for determination of acute coronary syndrome biomarkers]. [PDF]
Zhang Y +6 more
europepmc +1 more source
[Early follow-up study on three-dimensional-printed customized porous acetabular components for reconstructing extensive acetabular bone defects in primary total hip arthroplasty]. [PDF]
Tang S +11 more
europepmc +1 more source
[Volatile oil from <i>Acorus tatarinowii</i> Schott ameliorates tic disorder in rats by inhibiting TLR4/MyD88/NF-κB-mediated microglial polarization]. [PDF]
Feng P +7 more
europepmc +1 more source
准确、快速计算应急负荷和转供负荷工况下地埋电力电缆群暂态缆芯温升对于提高电力电缆动态载流能力精细化管理水平具有重要的意义。首先利用有限元稳态分析获得转移矩阵,利用有限元暂态分析获得单根加热电缆下的自热暂态温升数据和其余电缆的互热暂态温升数据;然后构建了复合暂态热路模型,加载电缆的自热热路模型由二支路热阻—热容组成,邻近电缆的互热热路模型由一支路热阻—热容组成,给出了复合暂态热路模型的龙格库塔法求解方法;最后以有限元计算结果为基准,利用遗传算法优化求解复合热路模型的热阻和热容参数。针对具体实例 ...
司文荣 +3 more
doaj
[Adeno-associated virus-mediated gene therapy for genetic epilepsy: prospects and challenges]. [PDF]
Sun B, Wang XL, Peng J.
europepmc +1 more source
[Analysis of stimulating factors for serum copeptin based on liquid chromatography-tandem mass spectrometry]. [PDF]
Mu DN +8 more
europepmc +1 more source
[A heterogeneous graph method integrating multi-layer semantics and topological information for improving drug-target interaction prediction]. [PDF]
Chen Z, Guo Y, Song S, Guo Q, Zhou D.
europepmc +1 more source

