A Numerical Study of Railway Ballast Subjected to Direct Shearing Using the Discrete Element Method

<div>The rotation of particles at <svg height="9.25202pt" id="M58" style="vertical-align:-3.29111pt" version="1.1" viewbox="-0.0498162 -5.96091 9.10163 9.25202" width="9.10163pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M387 375C387 402 357 448 257 448C172 448 82 404 82 326C82 289 108 255 156 241V239C85 223 23 181 23 116C23 39 89 -12 182 -12C265 -12 336 31 378 91L361 114C320 73 269 47 216 47C157 47 115 82 115 137C115 191 160 219 218 219C243 219 262 218 272 217L304 259L302 266C295 265 281 264 255 264C195 264 163 294 163 335C163 377 200 416 249 416C293 416 321 389 329 342C331 332 335 329 341 329C355 329 387 352 387 375Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,5.005,3.132)"><path d="M357 391C357 416 325 451 270 451C241 451 179 431 146 400C109 365 97 334 97 307C97 248 143 213 196 180C250 146 261 123 261 101C261 75 237 40 190 40C153 40 110 72 86 109C81 116 68 119 55 112C37 102 24 87 24 66C24 30 85 -12 137 -12C229 -12 331 62 331 140C331 189 304 218 236 260C197 284 164 309 164 346C164 381 194 400 220 400C259 400 282 380 304 350C310 342 321 339 330 344C347 353 357 372 357 391Z"></path></g></svg> of 0% and 10%: (a) <i>σ</i><sub><i>n</i></sub> = 15 kPa; (b) <i>σ</i><sub><i>n</i></sub> = 35 kPa; (c) <i>σ</i><sub><i>n</i></sub> = 55 kPa; (d) <i>σ</i><sub><i>n</i></sub> = 75 kPa.</div>

Advances in Materials Science and Engineering

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Figure 10

Figure 10: A Numerical Study of Railway Ballast Subjected to Direct Shearing Using the Discrete Element Method 