HIGH TEMPERATURE AND HIGH PRESSURE WATER ENVIRONMENTAL FATIGUE TEST APPARATUS, METHOD FOR CORRECTING AND MEASURING FATIGUE LOAD USING THE SAME

摘要

The high-temperature/high-pressure water environmental fatigue tester according to the present invention includes a load testing unit applying a load by the maximum capacity of an external load cell; an autoclave equipped with a sample or an internal load cell, and positioned below the load testing unit to maintain the high temperature and high pressure environment; a press balance transmitting the load to the sample, the internal load cell, or the external load cell, and offsetting the pressure applied to the inside of the autoclave not to transmit the pressure to the load testing unit; and a load transmitting shaft vertically positioned in the press balance and transmitting the load of the load testing unit to the internal load cell or the sample mounted in the autoclave. The load transmitting shaft may be attached by a plurality of strain gauges monitoring the load transmitted to the sample via the load transmitting shaft. With the above configuration, it is possible to determine whether the load is accurately transmitted to the sample mounted in the autoclave through a variance of the strain gauge and then correct the load.