thermal stress

简明释义

热应力

英英释义

例句

1.Engine components are designed to withstand thermal stress during operation to prevent failure.

发动机部件被设计为能够承受操作过程中产生的热应力以防止故障。

2.When metal is heated and then cooled rapidly, it can experience thermal stress, which may lead to cracks.

当金属被加热后迅速冷却时，它可能会经历热应力，这可能导致裂缝。

3.During welding, the rapid cooling of the joint can create significant thermal stress in the surrounding material.

在焊接过程中，接头的快速冷却会在周围材料中产生显著的热应力。

4.In construction, materials must be chosen carefully to minimize thermal stress due to temperature fluctuations.

在建筑中，材料必须仔细选择，以最小化因温度波动造成的热应力。

5.The thermal stress in ceramics can lead to shattering if they are not properly fired.

如果陶瓷没有正确烧制，热应力可能会导致破裂。

作文

Thermal stress is a term that refers to the stress induced in materials due to changes in temperature. When materials are subjected to varying temperatures, they expand or contract, leading to internal forces within the material. This phenomenon is particularly significant in engineering and construction, where understanding thermal stress（热应力） is crucial for ensuring the integrity and longevity of structures.One of the most common examples of thermal stress（热应力） can be observed in bridges. As temperatures rise during the summer months, the metal components of a bridge expand. Conversely, during winter, these materials contract. If the bridge is not designed to accommodate these changes, it can lead to warping, cracking, or even catastrophic failure. Engineers must take into account the maximum and minimum temperatures that a structure will experience over its lifespan to mitigate the risks associated with thermal stress（热应力）.In addition to bridges, thermal stress（热应力） can also affect buildings. For instance, the materials used in construction, such as concrete and steel, have different coefficients of thermal expansion. This means that when temperatures fluctuate, these materials do not expand or contract at the same rate. If not properly managed, this can result in tension and compression within the structure, leading to cracks in walls or ceilings. Architects and builders must carefully consider the materials they use and how they will behave under varying temperatures to prevent issues related to thermal stress（热应力）.Moreover, thermal stress（热应力） is not just a concern for large structures. It can also impact everyday objects, such as glassware. When glass is exposed to sudden temperature changes, like pouring hot liquid into a cold glass, it can shatter due to the rapid expansion of the inner layers compared to the outer layers. This is a direct result of thermal stress（热应力） and highlights the importance of understanding this concept in various applications.To combat the effects of thermal stress（热应力）, engineers often employ several strategies. One common method is to use expansion joints in structures, which allow for movement as temperatures change. These joints can absorb the stresses caused by expansion and contraction, thereby preventing damage. Additionally, selecting materials with similar thermal expansion properties can help minimize the risks associated with thermal stress（热应力）.In conclusion, thermal stress（热应力） is a critical factor that must be considered in the design and construction of various structures and materials. From bridges to buildings and even everyday items, understanding how temperature changes affect materials is essential for ensuring safety and durability. By implementing proper engineering practices and utilizing appropriate materials, we can effectively manage thermal stress（热应力） and enhance the resilience of our structures against the natural fluctuations of temperature.

热应力是一个术语，指的是由于温度变化而在材料中产生的应力。当材料受到不同温度的影响时，它们会膨胀或收缩，从而在材料内部产生内力。这种现象在工程和建筑中尤为重要，理解热应力（thermal stress）对确保结构的完整性和耐久性至关重要。热应力（thermal stress）的一个常见例子可以在桥梁中观察到。随着夏季气温的上升，桥梁的金属构件会膨胀。相反，在冬季，这些材料会收缩。如果桥梁没有设计成能够适应这些变化，就可能导致翘曲、开裂甚至灾难性的失败。工程师必须考虑到结构在其使用寿命内将经历的最大和最小温度，以减轻与热应力（thermal stress）相关的风险。除了桥梁，热应力（thermal stress）还会影响建筑物。例如，建筑中使用的材料，如混凝土和钢铁，具有不同的热膨胀系数。这意味着当温度波动时，这些材料的膨胀或收缩速度不同。如果不加以管理，可能会导致结构内部的拉伸和压缩，导致墙壁或天花板出现裂缝。建筑师和施工者必须仔细考虑他们使用的材料以及它们在不同温度下的表现，以防止与热应力（thermal stress）相关的问题。此外，热应力（thermal stress）不仅仅是大型结构的关注点。它还可能影响日常物品，例如玻璃器皿。当玻璃暴露于突如其来的温度变化时，比如将热液体倒入冷玻璃中，由于内层与外层的快速膨胀差异，它可能会破裂。这直接是由于热应力（thermal stress）造成的，突显了在各种应用中理解这一概念的重要性。为了应对热应力（thermal stress）的影响，工程师通常采用几种策略。一种常见的方法是在结构中使用伸缩缝，这允许随着温度变化而移动。这些接缝可以吸收由膨胀和收缩引起的应力，从而防止损坏。此外，选择具有相似热膨胀特性的材料可以帮助最小化与热应力（thermal stress）相关的风险。总之，热应力（thermal stress）是设计和建造各种结构和材料时必须考虑的关键因素。从桥梁到建筑物，甚至日常用品，理解温度变化如何影响材料对于确保安全和耐用性至关重要。通过实施适当的工程实践和利用合适的材料，我们可以有效管理热应力（thermal stress），增强结构抵御自然温度波动的韧性。