ASTM D6992-16(2023)
使用阶梯等温法基于时间-温度叠加的土工合成材料加速拉伸蠕变和蠕变断裂的标准试验方法

Standard Test Method for Accelerated Tensile Creep and Creep-Rupture of Geosynthetic Materials Based on Time-Temperature Superposition Using the Stepped Isothermal Method

ASTM D6992-16(2023) 发布历史

ASTM D6992-16(2023)由美国国家标准学会 US-ANSI 发布于 。

ASTM D6992-16(2023)的历代版本如下：

• 1970年 ASTM D6992-16(2023) 使用阶梯等温法基于时间-温度叠加的土工合成材料加速拉伸蠕变和蠕变断裂的标准试验方法
• 2016年 ASTM D6992-16 采用阶段等温法对基于时间-温度叠加的土工合成材料的加速拉伸蠕变和蠕变断裂的标准试验方法
• 2003年 ASTM D6992-03(2015) 采用阶段等温法对基于时间-温度叠加的土工合成材料的加速拉伸蠕变和蠕变断裂的标准试验方法
• 2009年 ASTM D6992-03(2009) 使用阶梯式等温法 基于时间 - 温度叠加的加速拉伸蠕变和地震合成材料蠕变断裂的标准试验方法
• 2003年 ASTM D6992-03 使用阶段等温法对基于时间-温度叠加的土工合成材料的加速拉伸蠕变和蠕变断裂的标准试验方法

1.1 This test method covers accelerated testing for tensile creep, and tensile creep-rupture properties using the Stepped Isothermal Method (SIM). 1.2 The test method is focused on geosynthetic reinforcement materials such as yarns, ribs of geogrids, or narrow geotextile specimens. 1.3 The SIM tests are laterally unconfined tests based on time-temperature superposition procedures. 1.4 Tensile tests are to be completed before SIM tests and the results are used to determine the stress levels for subsequent SIM tests defined in terms of the percentage of Ultimate Tensile Strength (T ULT ). Additionally, the tensile test can be designed to provide estimates of the initial elastic strain distributions appropriate for the SIM results. 1.5 Ramp and Hold (R+H) tests may be completed in conjunction with SIM tests. They are designed to provide additional estimates of the initial elastic and initial rapid creep strain levels appropriate for the SIM results. 1.6 This method can be used to establish the sustained load creep and creep-rupture characteristics of a geosynthetic. Results of this method are to be used to augment results of Test Method D5262 and may not be used as the sole basis for determination of long-term creep and creep-rupture behavior of geosynthetic material. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

标准号

ASTM D6992-16(2023)

发布单位

美国国家标准学会

当前最新

ASTM D6992-16(2023)

 

 

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