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The load on the road from one axle (2 wheels) is 10 times greater for a truck than for a car. However, the fourth power law says that the stress on (damage to) the road is this ratio raised to the fourth power. The road stress ratio of truck to car is 10,000 to 1.
Traditionally, the wear of materials has been characterized by weight loss and wear rate. However, studies have found that wear coefficient is more suitable. The reason being that it takes the wear rate, the applied load, and the hardness of the wear pin into account. Although, measurement variations by an order of 10-1 have been observed, the ...
National Pavement Cost Model (NAPCOM) estimates indicate that one 80,000-pound (36,000 kg) truck does as much damage to roads as 750 3,800-pound (1,700 kg) cars. [15] Some smaller bridges have a weight limit (or gross weight load rating) indicated by a posted sign (hence the reference to a "posted bridge").
These physical assets lose value due to wear and tear or obsolescence. Amortization applies to intangible assets, like patents, trademarks and goodwill. These assets, while non-physical, also ...
This decrease can be due to wear and tear, obsolescence, or other factors. In accounting, depreciation is used to spread the cost of an asset over its useful life. There are four different methods ...
It is used in a legal context for such areas as warranty contracts from manufacturers, which usually stipulate that damage from wear and tear will not be covered. [1] Wear and tear is a form of depreciation, which is assumed to occur even when an item is used competently and with care and proper maintenance. [2]
To calculate your monthly payment amount, the dealer will analyze the value of the new car versus its residual value. Like with any transaction involving financing, the higher your credit score ...
The Archard wear equation is a simple model used to describe sliding wear and is based on the theory of asperity contact. The Archard equation was developed much later than Reye's hypothesis [] (sometimes also known as energy dissipative hypothesis), though both came to the same physical conclusions, that the volume of the removed debris due to wear is proportional to the work done by friction ...