312 



STRENGTH OF MATERIALS 



Limestone, 272, 273, 274, 275. 

 Limit of elasticity. See Elastic limit. 

 Limitation to Bernoulli's assumption, 



75. 



Linear arch, 170, 186, 191. 

 Linear strain, 2o. 

 Linear variation of stress, 270. 

 Links, hooks, and springs. See Hooks. 

 Load line (arch), 169. 



Manganese in cast iron and steel, 232, 



240. 



Manila rope, 302. 

 Maple, strength of, 290. 

 Masonry arches, 168. 



application of principle of least 

 work, 176. 



conditions for stability, 172. 



designing of arches, 1 7'.. 



empirical formulas, IT'.i. 



linear arch, 170. 



load line, 169. 



maximum r< impressive stress, 174. 



Moseley 's theon* 1 1 1 . 171. 



oblique projection of, 181. 



stability of abutments, 181. 



Winkler's criterion for stability, 



717. 



Materials not obeying Hnoke's \A\\ 

 Materials of construction, average 



slants for, 18, I 1 .'. 

 Maximum bending moment. See / 



ing mon,' 



Maximum earth pressure, -" "> 

 Maximum normal stress, 23. 

 Maximum shear. 



Maximum stress in circular shafts. 11 1' 

 Maxwell's theorem. 

 Measure of strain, 31. 

 Merchantable timber, 296. 

 Modulus of elasticity, 



average values of, 18. 



defined, 6, 226. 



of brick, 278. 



of cast iron, 234. 



of concrete, 261. 



of shear, 29. 



of steel, 243. 



of stone, 278. 



of timber, 290, 292, 296, 296. 



of wrought iron, iM.l. 

 Modulus of rigidity, 



Modulus of resilience, 84, 226. 

 Modulus of rupture, 234, 275, 280, 2*4, 



290, 292, 295, I 

 Moisture in timber, 283. 

 Molds for cement briquettes, 261. 

 Moment diagrams, 49. 

 Moment of inertia, defined 



by graphical method, 41. 



of non-homogeneous sections 



polar, 39. 



Moment of resistance. :J7. 

 Mortar, cement. See Cement. 

 Mortar, lime. See Lime. 

 Moseley's theory. 171 



Natural cement, JIT 

 Neutral axis, deli nod. 



of sectioi :ns with oblique 



forces acting, 

 of sections of 



brains, L'tli;, ii;s. ii7(>. 

 Nickel steel, 241. 



Non-circular shafts in torsion, 117. 

 Normal stress, maximum. 



Oak, strength of, 290. 



Oblique ln; ; 



Oblique projection of arch. 181. 



-hearth K 

 i Mdmary foundations, 201. 



and steel, 

 11. 223. 



bolic variation of stress, _ 

 1'avinir l.rick. See Brick. 

 Phosphorus in iron and slot :. 

 Physical constants, 17. 

 Piers, brick. 

 Tiles, bearing powei 



-tren-ih ..f. -JJH. ;, 296. 



Planar strain, '_'_' 

 Plates, llat. cir.-ular, 186, i:!7. 



concrete-steel . 



elliptical, 



rectangular, : 



square. 141. 



stress in. L86, 1*7, 1 :'.'., 141, 142. 



theory of, 135. 

 Poisson's rati.i. 7 

 Polar moment of inertia, 39. 

 Poplar, strength of. I 

 Portland cement. 'J17 



