Creep stepped isothermal method

Figure 8.7 First stage of the stepped isothermal method (SIM) for oriented polyester fibres. Creep strain is measured under a single load while the temperature is increased...

GSIO Accelerated Tensile Creep Rupture of Geosynthetic Materials Based on Time—Temperature Superposition Using Stepped Isothermal Method D6992... 

The creep mode is used for measurement of flow at constant stress to determine the load-bearing stability of materials, a key to prediction of product performance. The creep mode is used to measure sample creep (strain) as a function of time and temperature at a selected stress. Using the isothermal step method, the sample is allowed to equilibrate at each temperature in a relaxed state. After equilibration, the sample is subjected to a constant stress, as illustrated in Figure 15.2(d). The resulting sample deformation (strain) is recorded as a function of time for a period selected by the operator. After the first set of measurements is made, the driver stress is removed and the sample is allowed to recover in an unstressed state. Sample recovery (strain) can be recorded as a function of time for any... 

The creep mode is used for the measurement of flow at constant stress to determine the load-bearing stability of materials, which is a key to prediction of product performance. The CTeep mode is used to measure sample creep (strain) as a function of time and temperature at a selected stress. Using the isothermal step method, the sample... 

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