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ID:46131954
大小:298.85 KB
页数:22页
时间:2019-11-21
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1、第一课compression压MechanicsofMaterial材料力学stress应力strain应变deformation变形strengthofmaterial材料强度mechanicsofdeformablebody变形体力学axialload轴向荷载bar杆shaft轴beam梁column柱failureload破坏荷载mechanicsbehavior力学性能formulas公式equation方程fascinatingblend完美结合criticalload临界荷载columntheory柱子曲线tension拉tensil
2、eforce/stress拉力/应力compressivestress压应力shear剪切prismaticbar棱柱杆/等直杆axialforce轴向力uniformstretching均匀拉伸freebody隔离体crosssection横截面hydrostaticpressure液体静压力uniformcontinuousdistribution均匀连续分布resultant合力beequalinmagnitudeandoppositeindirection大小相等方向相反bending弯矩statics静力学elongation伸长量ce
3、ntroid矩心形心第_谍plane水平z平面parallel平行的apinsupport固定较支座arollersupport滑动¥交支座abeamwithanoverhang延伸梁moment力矩auniformlydistributedload均布荷载long-spanbeam长跨梁indeterminateanalysis超静定分析translation平动rotation转动第=课thecrosssectionofabeam梁的横截面theneutralaxis中性轴theprincipal(tensile/compressive)st
4、ress主(拉/压)应力rectangularcrosssection矩形横截面theequationsofplanestress平面应力方程solidline实线dashedline虚线orthogonalcurve正交曲线stresstrajectories应力迹线stresscontour应力等值线stressconcentrations应力集中inthewebatthejunctionwiththeflange在腹板和翼缘的交接处magnitude大小,数量mid-height中等高度,中间高度moment矩intersect相交,横切t
5、angent切线,正切wide-flange宽翼缘fillet圆角,角缝第四课continuousbeam连续梁thedegreeofstaticalindeterminacy超静定的次数methodofsuperposition叠加法equationsofcompatibility协调方程thesecondmoment-areatheorem第二面积矩定律three-momentequation三弯矩方程themomentofinertia惯性矩asetofsimultaneousequations联立方程组auniformloadofinte
6、nsityq集度为q的均布荷载redundant赘余力intermediate中间的,中途的external外面的,外界的rotation转动centroidal形b的,矩心的formulate用公式表示,化成公式第五课theunit-loadmethod单位力法bendingmoment弯矩twistingmoment扭矩thestressresultants应力第六课Reciprocaltheorems互等定理Strainenergy应变能Reciprocaldisplacementtheorem位移互等定理Reciprocalworkthe
7、orem功的互等定理Linearlyelasticstructures线弹性结构Cantileverbeam悬臂梁Concentratedload集中力Freeend自由端Midpoint中点Deflection挠度Formula公式Subscriptnotation下标Besubjectedto受至I」Respectively分别Inaccordaneewith和.八一至攵Analogousmanner类似方式Correspondence相应Consistof由、、、组成Nevertheless景观如此Derivation推导,引出,来历Sim
8、ultaneously同时Principleofsuperposition叠加原理Hence因此Undergo经受承受Sumup把、、、
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