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3FL
σ=———— MPa
2bh2
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F——瑭︽ǎ鏂疯鏅�(sh铆)鐨剒ui澶ц級鑽�锛孨
L——鏀粸(di菐n)璺濋洟锛�mm
b——瑭︽ǎ瀵害锛�mm
h——瑭︽ǎ鏂疯闈ui灏忓帤搴�锛�mm
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瑭﹂(y脿n)姗�(j墨)鍑哄粻鍓嶅姏鍊兼脯(c猫)瑭︾簿搴﹀凡缍�(j墨ng)鏍℃簴(zh菙n)銆傚鐢ㄦ埗闇€瑕佹牎椹�(y脿n)锛屽墖闇€鐢ㄧ稉(j墨ng)瑷�(j矛)閲忛儴闁€妾㈠畾閬�10000N妯�(bi膩o)婧�(zh菙n)娓�(c猫)鍔涜▓(j矛)閫�(j矛n)琛屾牎婧�(zh菙n)銆�
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2銆佹寜“鍔熻兘”閸�锛屾墦闁嬭彍鍠�
3銆佹寜“涓嬬炕”閸靛埌“鏂板缓瑭﹂(y脿n)鏂规”
4銆佹寜鎻愮ず杓稿叆瑭﹂(y脿n)姊濅欢
5銆佹寜“鍟熷嫊(d貌ng)”閸甸€�(j矛n)琛岃│椹�(y脿n)
6銆佽│椹�(y脿n)绲�(ji茅)鏉熷悗锛屾竻鐞嗙伆娓o紝鏂锋帀闆绘簮銆�
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