Marine climate environment-bending load collaborative acceleration test method for metal material

A marine climate environment-bending load collaborative acceleration test method for a metal material, wherein a bending load loading device is placed in a real outdoor marine climate environment, and the test method comprises:

• (1) conducting a test in the outdoor marine climate environment, wherein the test piece is placed in a same real outdoor marine climate environment to detect, within performance detection periods of 3 months, a maximum bending force of the test piece in each period;
• (2) conducting a static bending load loading test in the outdoor marine climate environment, wherein
• test parameters comprise:
• a static bending load:
• 0.3 Fbb, wherein Fbb is the maximum bending force of the metal material;
• a stress ratio:
• 1;
• a test period:
• 10 to 45 days;
• and
• static bending load loading time:
• loading continuously until the test is ended;
• (3) conducting an alternate cycle of a dynamic bending load loading test in the outdoor marine climate environment and a test in the outdoor marine climate environment, wherein
• parameters of the dynamic bending load loading test in the outdoor marine climate environment comprise:
• a maximum dynamic bending load:
• 0.3 Fbb, wherein Fbb is the maximum bending force of the metal material;
• a minimum dynamic bending load:
• 0.03 Fbb, wherein Fbb is the maximum bending force of the metal material;
• a dynamic bending loading frequency:
• 5 Hz;
• a dynamic bending loading waveform:
• sine wave;
• a test period:
• 10 to 45 days;
• and
• dynamic bending load loading time:
• loading twice a day, once in the morning and once in the afternoon, and 15 minutes each time;
• the alternate cycle comprises the dynamic bending load loading test in the outdoor marine climate environment and the test in the outdoor marine climate environment;
• and the dynamic bending load loading test in the outdoor marine climate environment and the test in the outdoor marine climate environment are alternately cycled in sequence;
• (4) conducting an alternate cycle of a dynamic bending load loading test and a static bending load loading test in the outdoor marine climate environment, wherein
• parameters of the dynamic bending load loading test in the outdoor marine climate environment comprise:
• the maximum dynamic bending load:
• 0.3 Fbb, wherein Fbb is the maximum bending force of the metal material;
• the minimum dynamic bending load:
• 0.03 Fbb, wherein Fbb is the maximum bending force of the metal material;
• the dynamic bending loading frequency:
• 5 Hz;
• the dynamic bending loading waveform:
• sine wave;
• the test period:
• 10 to 45 days;
• the static bending load:
• 0.3 Fbb, wherein Fbb is the maximum bending force of the metal material;
• bending load loading time:
• loading the dynamic bending load twice a day, once in the morning and once in the afternoon, and 15 minutes each time, and the rest time being the static bending load loading time.