Хөнгөн бетоны нэмэлтүүд | Үүрэн бетонд зориулсан өндөр үзүүлэлттэй хөөслөгч
The хагарлын эсрэг is a peculiar fracture process that is believed to occur in dry snow slab avalanches. Сонирхолтой нь, Энэ нь мөн хэт халсан мөсөнд бүртгэгдсэн байна, гүн гүнзгий газар хөдлөлт, and submarine landslides.
Энэ судалгаанд, we evaluated the performance of a new elastoplasticity model for porous materials, which reproduces the onset of хагарлын эсрэгs in a snow fracture experiment. A modified strain-softening plastic flow rule is used to capture the complexity of porous materials under mixed-mode loading. The key to the model’s performance is its ability to emulate the onset of the хагарлын эсрэг.
We examined the хагарлын эсрэг‘s performance in two experiments. Each lasted two hours and consisted of three test phases. Эхлээд, we poured concrete to a designated location below the structural main reinforcement. Дараа нь, we fixed the rebar mesh at the design position. After this, we performed a series of tests. Эцэст нь, we measured the vertical displacement of markers placed at various points on the slab. The results show that a number of interesting features occurred during the testing process.
In the two cited tests, нь хагарлын эсрэг‘s most notable feat was a reversible fracture that started at the crown of the avalanche, traveled down the weak layer, and then branched outwards. This is the first time that this particular feat has been documented in a laboratory setting.
Мэдээжийн хэрэг, this feat has been surpassed by many other achievements in this study. Түүнээс гадна, the most interesting is a new elastoplasticity modeling strategy for porous materials that successfully mimics the onset of хагарлын эсрэгс.