reverse engineering – recent advances and applications - OpenLibra

More documents

Recommendations

Info

272 3. Results Reverse Engineering – Recent Advances and Applications In most assessed dentures was observed that the faults occurs mainly in the area where the thickness of denture is high, as indicated in figure 1. It was also noticed that, in the Eclipse dentures the density of defects may be higher than in the Meliodent dentures, but the defects in Eclipse may be smaller in size than those in Meliodent. This is due to different technologies for developing materials (heat curing polymerization – Meliodent and light curing polymerization – Eclipse). The mechanical properties resulted after the experimental programs were given in table 2. The results show that, Eclipse Base Plate has a better elasticity compared to Meliodent and also a better fracture strength. Material Ultimate Tensile Strength σuts [MPa] Tensile Young’s modulus, E [MPa] Total Elongation At [%] Flexural Strength σf [MPa] Eclipse 80.16 3390 4.06 127 Meliodent 68.62 1215 8.76 118 Table 2. Mechanical properties of the materials used for FEM analysis For finite element analysis were considered four analysis models, each of them having a defect located in different areas of the denture. For all these cases have been evaluated the stress and strain states (fig. 16 - 24). Since the materials have a brittle fracture behavior it was considered for this analysis the fracture criterion which takes into account the Maximum Principal Stress. In all analyzed models, the presence of the faults has increased the stress and strain state, compared to the situation they are not considered. Moreover, this defects increased the fracture risk of denture. Thus, in case of model I the fracture risk of denture has increased by almoust 29 % due to present defect, in the second model the fracture risk increased by almost 14 %, in the third case was an increase of almost 90 % and in the latter case (the fourth model) the fracture risk increased with 18 %. The increased rates of fracture risk of denture were determined reporting the actual stress states to the stress state of the same a) b) Fig. 16. The Maximum Principal Stress (a) and Maximum Principal Strain (b) state in the first analysis model for denture with Eclipse material
Reverse Engineering and FEM Analysis for Mechanical Strength Evaluation of Complete Dentures: A Case Study Fig. 17. The Maximum Principal Stress around the defect in the first analysis model for denture with Eclipse material a) b) Fig. 18. The Maximum Principal Stress (a) and Maximum Principal Strain (b) state in the first analysis model for denture with Meliodent material a) b) Fig. 19. The Maximum Principal Stress (a) and Maximum Principal Strain (b) state in the second analysis model for denture with Eclipse material 273
Page 1 and 2:
REVERSE ENGINEERING - RECENT ADVANC
Page 5 and 6:
Contents Preface IX Part 1 Software
Page 9 and 10:
Preface Introduction In the recent
Page 11 and 12:
Preface XI and con’s related to t
Page 13 and 14:
Preface XIII the step-by-step appli
Page 17:
Part 1 Software Reverse Engineering
Page 20 and 21:
4 Reverse Engineering - Recent Adva
Page 22 and 23:
Page 24 and 25:
Page 26 and 27:
10 Reverse Engineering - Recent Adv
Page 28 and 29:
Page 30 and 31:
Page 32 and 33:
Page 34 and 35:
Page 36 and 37:
Page 38 and 39:
Page 40 and 41:
Page 42 and 43:
Page 44 and 45:
Page 46 and 47:
Page 48 and 49:
Page 50 and 51:
Page 52 and 53:
Page 54 and 55:
Page 56 and 57:
Page 58 and 59:
Page 60 and 61:
Page 62 and 63:
Page 64 and 65:
Page 66 and 67:
Page 68 and 69:
Page 70 and 71:
Page 72 and 73:
Page 74 and 75:
58 2. Model driven architecture: An
Page 76 and 77:
Page 78 and 79:
62 Fig. 1. Model, metamodels and tr
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Page 92 and 93:
Page 94 and 95:
Page 96 and 97:
Page 98 and 99:
Page 100 and 101:
Page 102 and 103:
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
100 Reverse Engineering - Recent Ad
Page 118 and 119:
Page 120 and 121:
Page 122 and 123:
Page 124 and 125:
108 Table 1. Number of smoothers an
Page 126 and 127:
Page 128 and 129:
Page 130 and 131:
Page 133 and 134:
1. Introduction 60 Surface Reconstr
Page 135 and 136:
Surface Reconstruction from Unorgan
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
1. Introduction A Systematic Approa
Page 151 and 152:
A Systematic Approach for Geometric
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
A Review on Shape Engineering and D
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Integrating Reverse Engineering and
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230:
Page 231:
Part 3 Reverse Engineering in Medic
Page 234 and 235:
Page 236 and 237:
Page 238 and 239: 222 Reverse Engineering - Recent Ad
Page 254 and 255: 238 5. Summary and discussions Reve
Page 284 and 285: 268 Fig. 6. A closed polygon mesh r
Page 292: 276 Reverse Engineering - Recent Ad
show all

reverse engineering – recent advances and applications - OpenLibra

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?