format tables
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@ -226,10 +226,10 @@ design.
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Simply multiply the maximum stresses and loads you expect by the safety factor, $n_s$, and assume
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Simply multiply the maximum stresses and loads you expect by the safety factor, $n_s$, and assume
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that as your maximum stress and load.
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that as your maximum stress and load.
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$n_s$ | Operational conditions and use of materials
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| $n_s$ | Operational conditions and use of materials |
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1.25-1.50 | Reliable materials under controlled conditions, known stresses with certainty
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| 1.25-1.50 | Reliable materials under controlled conditions, known stresses with certainty |
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1.50-2.00 | Well-known materials under reasonably constant environmental condition, known stresses
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| 1.50-2.00 | Well-known materials under reasonably constant environmental condition, known stresses |
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2.00-2.50 | Average materials subjected to known loads and stresses and environment (LSE)
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| 2.00-2.50 | Average materials subjected to known loads and stresses and environment (LSE) |
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2.50-3.00 | Lesser well-known materials under average conditions LSE
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| 2.50-3.00 | Lesser well-known materials under average conditions LSE |
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3.00-3.40 | Untried materials under average conditions of stresses and environment, or well known materials under uncertain LSE
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| 3.00-3.40 | Untried materials under average conditions of stresses and environment, or well known materials under uncertain LSE |
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