A stress-strain relation of core concrete is presented, in which the confinement effect of steel tube to core concrete is modified by the circumference stress grade.

提出了偏心受压的钢管混凝土考虑钢管径向应力梯度对紧箍作用影响的核心混凝土的应力-应变关系模型。

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At the end of the paper, a stress strain response model of different concrete grade has been built only using the compressive strength, and this model coincides well with the experiment results.

文末，仅通过混凝土立方体抗压强度，建立了不同强度等级混凝土的应力-应变曲线上升段本构关系，该模型结果与试验结果吻合很好。

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Based on the NACE standard, the behavior of restriction on hydrogen induced cracking (HIC) and sulfide stress corrosion cracking (SSCC) of X80 grade pipeline steel was investigated.

依据NACE标准研究了X80级管线钢的抗硫化物应力腐蚀开裂(SSCC)和氢致开裂(HIC)行为。

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It could also help some firms get a passing grade on government 'stress tests' to assess their fiscal health.

FORBES: Accounting

His plan seemed to have worked since last week the Federal Reserve stress test results gave BofA a passing grade.

FORBES: Bank Of America Shares Hit $10, Is It All Uphill From Here?

When my local radio station is reporting everyday on how the mayor is re-negotiating or canceling municipal or county collective bargaining agreements due to financial crisis, will this somehow hit home better when the broadcaster relays the results of the stress test, maybe even telling me some grade from A-F has been assigned to my home town by the government?

FORBES: What Is Wisconsin Governor Scott Walker Not Telling Us About Financial Stress Test Legislation?