- 专利标题： METHOD AND APPARATUS FOR EVALUATING DAMAGE-HEALING CHARACTERISTICS OF PAVING ASPHALT BASED ON ENERGETICS PRINCIPLE
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申请号： US18326049申请日： 2023-05-31
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公开(公告)号： US20230384285A1公开(公告)日： 2023-11-30
- 发明人: Chao Wang , Guanyu Gong , Zhengyang Ren
- 申请人： Beijing University Of Technology
- 申请人地址： CN Beijing
- 专利权人： Beijing University Of Technology
- 当前专利权人： Beijing University Of Technology
- 当前专利权人地址： CN Beijing
- 优先权： CN 22106126756 2022.05.31
- 主分类号： G01N33/42
- IPC分类号： G01N33/42 ; G01N3/24 ; G01N3/32
摘要：
A method for evaluating damage-healing characteristics of paving asphalt based on energetics principle includes: obtaining a numerical integral AH of a stored pseudo strain energy required by asphalt to compensate damage-healing to loading times and obtaining local life compensation ΔN of the asphalt benefiting from damage-healing characteristics; calculating an average stored pseudo strain energy QH of the asphalt according to the following
Q
H
=
A
H
Δ
N
;
and evaluating the asphalt damage-healing characteristics according to the average stored pseudo strain energy QH of the asphalt. This method is based on the evolution law of the average stored pseudo strain energy required to compensate the damage-healing to explore the damage-healing characteristics of asphalt. As a characteristic index of materials, this energy evaluation index has nothing to do with the damage state and the rest periods, but only depends on the strain load, which improves the testing efficiency.
Q
H
=
A
H
Δ
N
;
and evaluating the asphalt damage-healing characteristics according to the average stored pseudo strain energy QH of the asphalt. This method is based on the evolution law of the average stored pseudo strain energy required to compensate the damage-healing to explore the damage-healing characteristics of asphalt. As a characteristic index of materials, this energy evaluation index has nothing to do with the damage state and the rest periods, but only depends on the strain load, which improves the testing efficiency.
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